Final answer:
The rise in voltage at the receiving end of a transmission line can be determined using the formula Vr = Vs - Ir * R.
Step-by-step explanation:
The rise in voltage at the receiving end of a transmission line can be determined using the formula Vr = Vs - Ir * R, where Vr is the receiving voltage, Vs is the sending voltage, Ir is the current, and R is the resistance of the transmission line.
In this case, the sending voltage is given by (300 + Class ID) km, with a frequency of 50 Hz. To calculate the receiving voltage, we need to determine the current and resistance.
More information and calculations are needed to provide a specific answer to this question. Please provide the necessary details, such as the current and resistance values, so that we can assist you further.